Annular slot antenna

Details Annular slot antenna Annular slot antenna

1983-02-10

1985-10-15

Lieberman, Eli

Communications: radio wave antennas

Antennas

Microstrip

H01Q 138

Patent

active

045477795

ABSTRACT:
A microstrip annular antenna structure is formed by four quarter-wavelength microstrip radiator patches arranged in a quadrant formation and having outwardly directed adjacent radiating apertures which together provide a composite annular radiating slot extending about 360.degree. of azimuth. All such radiators are fed in-phase by a single centrally located feedpoint and equal length microstrip transmission lines extending diagonally therefrom to a respective matched impedance feedpoint associated with each radiator patch structure. An extremely low profile rf antenna system results with a monopole or annular slot vertically polarized radiation pattern.

REFERENCES:
patent: Re29296 (1977-04-01), Krutsinger et al.
patent: Re29911 (1979-03-01), Munson
patent: 3713162 (1973-04-01), Munson et al.
patent: 3810183 (1974-10-01), Krutsinger et al.
patent: 3811128 (1974-08-01), Munson
patent: 3921177 (1975-07-01), Munson
patent: 3938161 (1976-10-01), Sanford
patent: 3971032 (1976-07-01), Munson et al.
patent: 4012741 (1977-09-01), Johnson
patent: 4051477 (1977-07-01), Murphy et al.
patent: 4070676 (1978-05-01), Sanford
patent: 4131894 (1978-04-01), Schiavone
patent: 4180817 (1979-06-01), Sanford
patent: 4233607 (1980-01-01), Sanford et al.
patent: 4259670 (1981-12-01), Schiavone
patent: 4320401 (1982-04-01), Schiavone
patent: 4460894 (1984-07-01), Robin et al.

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